1110003021221 has 8 divisors (see below), whose sum is σ = 1149917067000. Its totient is φ = 1070198180800.

The previous prime is 1110003021209. The next prime is 1110003021227. The reversal of 1110003021221 is 1221203000111.

It can be written as a sum of positive squares in 4 ways, for example, as 80153536996 + 1029849484225 = 283114^2 + 1014815^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1110003021221 - 2¹⁰ = 1110003020197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1110003021196 and 1110003021205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110003021227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27280646 + ... + 27321303.

It is an arithmetic number, because the mean of its divisors is an integer number (143739633375).

Almost surely, 2^{1110003021221} is an apocalyptic number.

It is an amenable number.

1110003021221 is a deficient number, since it is larger than the sum of its proper divisors (39914045779).

1110003021221 is an equidigital number, since it uses as much as digits as its factorization.

1110003021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54602679.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1110003021221 its reverse (1221203000111), we get a palindrome (2331206021332).

The spelling of 1110003021221 in words is "one trillion, one hundred ten billion, three million, twenty-one thousand, two hundred twenty-one".